Take your food, pots, pans, utensils, sheets, towels and bed spread off the bed. Buy two raid pesticide foggers. Set them off at each end of your coach and get out of the motorhome. After 24 hours, open it up and let it air out. Once you've done that, your good for a couple of years. Not only does it take care of ants, it takes care of spiders, roaches, and mice. My son was born with a disability where he was not able to get away from swarming ants. We went to see my brother in Georgia. I heard my son squirming around on the baby monitor and went in to check on him. I found ants crawling on him. I even spray my power cord and around my tires with a pesticide when parked.